Home / 38,122.55-57,129.34-21,447.75

Finding the Fourth Proportional to 38,122.55, 57,129.34 and 21,447.75

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Solution

The fourth proportional to 38,122.55, 57,129.34 and 21,447.75 is: 32,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.55 : 57,129.34 = 21,447.75 : x
  2. Step 2: Convert to fraction form
    38,122.55/57,129.34 = 21,447.75/x
  3. Step 3: Cross multiply
    38,122.55x = 57,129.34 × 21,447.75
  4. Step 4: Simplify right side
    38,122.55x = 1,225,295,801.99
  5. Step 5: Solve for x
    x = 1,225,295,801.99/38,122.55
  6. Step 6: Final answer
    x = 32,140.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.